Blood Pressure Calculator
Check if your blood pressure is normal, high, or low using clinical guidelines
Blood Pressure Measurement
Choose the clinical guideline for blood pressure interpretation
The pressure when your heart beats (higher number)
The pressure when your heart rests (lower number)
Guidelines Comparison
| Category | American (ACC/AHA) | European (ESC/ESH) |
|---|---|---|
| Optimal/Normal | <120/80 mmHg | <120/80 mmHg (Optimal) |
| Elevated/High Normal | 120-129/<80 mmHg | 130-139/85-89 mmHg |
| Stage 1/Grade 1 | 130-139/80-89 mmHg | 140-159/90-99 mmHg |
| Stage 2/Grade 2 | 140-179/90-119 mmHg | 160-179/100-109 mmHg |
| Crisis/Grade 3 | ≥180/120 mmHg | ≥180/110 mmHg |
Blood Pressure Categories
Normal/Optimal
<120/80 mmHg
Maintain healthy habits
Elevated/High Normal
120-139/80-89 mmHg
Lifestyle modifications
Stage 1 Hypertension
130-159/80-99 mmHg
Medical evaluation needed
Stage 2+ Hypertension
≥160/100 mmHg
Medical treatment required
Hypotension
<90/60 mmHg
Monitor for symptoms
Hypertension Risk Factors
Non-Modifiable
- • Age (risk increases with age)
- • Family history
- • Gender (varies by age)
- • Race/ethnicity
- • Chronic kidney disease
Modifiable
- • Physical inactivity
- • Unhealthy diet (high sodium)
- • Obesity/overweight
- • Excessive alcohol
- • Smoking
- • Stress
- • Sleep apnea
Accurate Measurement Tips
Rest for 5+ minutes before measurement
Avoid caffeine/nicotine for 30 minutes
Sit with back supported, feet flat
Position arm at heart level
Take multiple readings
Place cuff on bare skin
Understanding Blood Pressure
What is Blood Pressure?
Blood pressure is the pressure of circulating blood against the walls of blood vessels. It's measured using two numbers: systolic pressure (when the heart contracts) and diastolic pressure (when the heart rests between beats).
Health Implications
High blood pressure (hypertension) is often called the "silent killer" because it usually has no symptoms but significantly increases risk of heart disease, stroke, and kidney problems.
When to Measure
- •Regular health screenings
- •If you have risk factors
- •Monitoring treatment effectiveness
- •Symptoms of high or low BP
Hypertension Complications
Cardiovascular
Heart attack, heart failure, arrhythmias
Cerebrovascular
Stroke, transient ischemic attacks
Renal
Chronic kidney disease, kidney failure
Ocular
Retinopathy, vision loss
Hypotension Symptoms
- • Dizziness or lightheadedness
- • Fainting episodes
- • Fatigue and weakness
- • Blurred vision
- • Nausea
- • Cold, clammy skin
Important Medical Disclaimer
This blood pressure calculator is for educational purposes only and should not replace professional medical evaluation. Proper blood pressure measurement requires calibrated equipment and appropriate technique.
Always consult with qualified healthcare professionals for:
- Clinical interpretation of blood pressure readings
- Diagnosis and treatment of hypertension or hypotension
- Management of cardiovascular risk factors
- Proper blood pressure measurement technique
Seek immediate medical attention if: Blood pressure exceeds 180/120 mmHg, you experience severe symptoms, or have signs of hypertensive emergency.